Author: fjahanian
Date: Fri Mar 15 15:47:07 2013
New Revision: 177181
URL: http://llvm.org/viewvc/llvm-project?rev=177181&view=rev
Log:
c: perform integer overflow check on all binary
operations. // rdar://13423975
Modified:
cfe/trunk/lib/Sema/SemaChecking.cpp
Modified: cfe/trunk/lib/Sema/SemaChecking.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaChecking.cpp?rev=177181&r1=177180&r2=177181&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaChecking.cpp (original)
+++ cfe/trunk/lib/Sema/SemaChecking.cpp Fri Mar 15 15:47:07 2013
@@ -5186,18 +5186,7 @@ void Sema::CheckImplicitConversions(Expr
/// Diagnose when expression is an integer constant expression and its
evaluation
/// results in integer overflow
void Sema::CheckForIntOverflow (Expr *E) {
- if (const BinaryOperator *BExpr =
dyn_cast<BinaryOperator>(E->IgnoreParens())) {
- unsigned Opc = BExpr->getOpcode();
- switch (Opc) {
- case BO_Add:
- case BO_Sub:
- case BO_Mul:
- case BO_Div:
- case BO_Rem:
- break;
- default:
- return;
- }
+ if (isa<BinaryOperator>(E->IgnoreParens())) {
llvm::SmallVector<PartialDiagnosticAt, 4> Diags;
E->EvaluateForOverflow(Context, &Diags);
}
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